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CH552 Dual USB to Serial Bridge.
Hello!
I am having issues with the Sipeed Maixduino board that I suspect are occurring at the serial port. When I try to upload code (the basic/standard Blink exercise) from the Arduino IDE (v1.8.9) under Ubuntu 19.04, I get the following output:
Sketch uses 95735 bytes (1%) of program storage space. Maximum is 8388608 bytes.
[INFO] ANSI colors not used
[INFO] COM Port Selected Manually: /dev/ttyUSB0
[INFO] Default baudrate is 115200 , later it may be changed to the value you set.
[INFO] Trying to Enter the ISP Mode...
*
[INFO] Greeting Message Detected, Start Downloading ISP
Downloading ISP: |======-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| 1.5%
...
Downloading ISP: |=============================================================================================================================================================================================================================================================================================================================================================================================================================================================| 100.0% 10kiB/s
[INFO] Booting From 0x80000000
[INFO] Wait For 0.1 second for ISP to Boot
[INFO] Boot to Flashmode Successfully
[INFO] Selected Baudrate: 1000000
[INFO] Baudrate changed, greeting with ISP again ...
[WARN] Timeout Error, retrying...
...
[WARN] Timeout Error, retrying...
'MAIXLoader' object has no attribute 'raise_exception'
the selected serial port 'MAIXLoader' object has no attribute 'raise_exception'
does not exist or your board is not connected
I have removed the intermediate "Downloading ISP" lines.
Can you help me, please, to resolve the issue? Thanks.
P.S. I know that baudrate 115200 works for flashing the firmware on the Maixduino but there is no such baudrate selection in the Arduino IDE when the Maixduino board is selected.
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